6-Chloro-1H-pyrrolo[2,3-b]pyridine-4-carboxylic acid
tert-Butyl 4-hydroxy-7,8-dihydropyrido[4',3':3,4]pyrazolo[1,5-a]pyrimidine-9(10H)-carboxylate
3-Bromo-6-methyl-1H-pyrrolo[3,2-b]pyridine
Ethyl 5-cyano-1,6-dihydro-2-methyl-6-oxo-3-pyridinecarboxylate